290 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxu. 



PORTUNUS HASTATUS (Linnaeus). 



Cancer liastatus LiNN^Us, Sys. Nat., 12th ed., I, 1767, Pt. 2, p. 1046. 

 Lupa hastata Milne-Edwards, Hist. Nat. Criist., 1, 1834, p. 455. 

 Neptunus (Ampihitrite) inaqualis Miees, Ann. Mag. Nat. Hist. (5), VIII, 1881, p. 217, 

 pi. XIII, fig 6. 



Range. — West coast of Spain and Portugal; Azores; Mediterranean 

 Sea; West Africa. 



West African localities. — Canaries; Goree Bay, Senegambia, 9 to 15 

 fathoms (Miers) ; St. Thomas Island, at Praia das Conchas and Bale 

 d'Anna Chaves (Osorio). 



PORTUNUS EDWARDSI (Rochebrune) , 



Neptunus edivardsi Eochebrune, Bull. Soc. Philom. Paris (7), VII, 1883, p. 169. 

 West African localities. — Gambia and Casamance Elvers (Eoche- 

 brune). 



PORTUNUS PALLIDUS Rochebrune. 



Neptunus paUidus Rochebrune, Bull. Soc. Philom. Paris (7), VII, 1883, p. 170. 



West African locality. — Lac de N'Guer, Marigots de M'Bao, Thionk, 

 Leybar (Eochebrune). 



Genus CALLINECTES Stimpson. 



KEY TO THE WEST AFRICAN SPECIES OF THE GENUS CALLINECTES. 



A. Length of lateral spine less than twice that of preceding tooth iocourti. 



*A'. Length of lateral spine more than twice that of preceding tooth. 



B. Appendages of first abdominal segment of male much shorter than the abdomen. 

 C. Lateral spine long and slender, about three times length of preceding tooth. 



gladiator. 

 C. Lateral spine shorter and stout, between two and two and a half times 



length of preceding tooth marginatus. 



B'. Appendages as long as the abdomen latimanus. 



CALLINECTES BOCOURTI A. Milne-Edwards. 



Callinectes Iocourti A. Milne-Edwards, Crust. R6g. Mex., 1879, p. 226 (variety 

 of C. diacanthus). — Rathbun, Proc. Biol. Soc. Wash., XI, 1897, p. 151, and 

 synonymy. 



? Neptunus amnicola Rochebrune, Bull. Soc. Philom. Paris (7), VII, 1883, p. 168. 



Range. — Honduras to Eio de Janeiro, Brazil; West Africa. 



West African localities. — Senegal; Liberia; Chinchoxo. Neptunus 

 amnicola Eochebrune is described from Senegal, Faleme, Bakoy, Bating, 

 " et tous les Marigots tributaires." 



Osorio records ^^ Neptunus diacanthus ^^ from Angola, Benguella, 

 Loanda, Lobito,' from Praia das Conchas, St. Thomas,^ and from logo- 

 logo, St. Thomas.^ De Man reports N. diacanthus from Liberia, St. 

 George del Mina, and Congo.* Thallwitz also records a Callinectes 



1 Jor. Sci. Lisboa, XI, 1887, p. 225. ^ jdem. (2), II, 1890, p. 199. 



2 Idem. (2), 1, 1889, p. 131. " Notes Leyden Mus., V, 1883, p. 150. 



